There are many situations that come to your computer based on Windows 8.1 with some unusual happenings. Sometimes when you are working on the Windows and doing some very important work, you suddenly get Low memory warning in Windows 8.1. It may also happen when you upgrade your computer from Windows 8 to Windows 8.1. After the occurring of this issue, you cannot perform any function without getting rid of Windows 8.1 showing low memory warning. Sometimes you get this error on every hour, etc. You can fix low memory warning in Windows using some manual or automatic error fixing methods. For automatic fixing, you should download and install Advanced System Repair Tool.